feat: improve visualization of tags

Previously tags where very much focused on color coding email and less about
adding additional information. They were also visualized in different ways in
different locations.

This commit gets rid of all "Color-coding" references, aligns visualization of
the tags across the whole project and tries to improve user experience of using
tags in general.

A search box is shown in the tagging control so the user can quickly search for
a tag if they have a huge (more than 10) amount of tags.

locales/he/common.json

@@ -272,13 +272,13 @@
     "view_contact": "הצג איש קשר",
     "message_details": "פרטי הודעה",
     "more_reply_options": "אפשרויות תשובה נוספות",
-    "set_color": "הגדר תג",
+    "set_tag": "הגדר תג",
     "tag": "תג",
     "more_actions": "עוד פעולות",
     "previous": "הקודם",
     "next": "הבא",
     "move_to": "העבר ל...",
-    "remove_color": "הסר תג",
+    "remove_tag": "הסר תג",
     "more_count": "+{count}נוספים",
     "characters_count": "{count} תווים",
     "quick_reply_placeholder": "תשובה מהירה",
@@ -347,17 +347,6 @@
       "message_id": "מזהה הודעה",
       "list_info": "רשימת מידע"
     },
-    "color_tag": {
-      "title": "תג צבע",
-      "red": "אדום",
-      "orange": "כתום",
-      "yellow": "צהוב",
-      "green": "ירוק",
-      "blue": "כחול",
-      "purple": "סגול",
-      "pink": "ורוד",
-      "none": "אין"
-    },
     "tooltips": {
       "reply": "תשובה (ר)",
       "reply_all": "השב לכולם (א)",
@@ -1999,8 +1988,7 @@
     "delete": "לִמְחוֹק",
     "mark_as_spam": "דווח על ספאם",
     "not_spam": "לא ספאם",
-    "color_tag": "תווית",
-    "remove_color": "הסר תווית",
+    "tag": "תווית",
     "items_selected": "נבחרו הודעות דוא\"ל מסוג{count}",
     "edit_draft": "ערוך טיוטה",
     "cancel_scheduled_send": "ביטול שליחה",